From 3647aff86cde1fb6137a27b4212b2aaaa5f94af1 Mon Sep 17 00:00:00 2001
From: David Pirotte <david@altosw.be>
Date: Fri, 10 Mar 2023 23:19:51 -0300
Subject: [PATCH 1/3] Updating m4/guile.m4

* m4/guile.m4: Updated to the latest version available in Guile, which
  fixes a few minor/micro checks related bug(s).
---
 m4/guile.m4 | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/m4/guile.m4 b/m4/guile.m4
index 57a0868..48642f0 100644
--- a/m4/guile.m4
+++ b/m4/guile.m4
@@ -17,7 +17,7 @@
 ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 ## 02110-1301 USA
 
-# serial 10
+# serial 11
 
 ## Index
 ## -----
@@ -60,7 +60,10 @@
 # @code{AC_SUBST}.
 #
 AC_DEFUN([GUILE_PKG],
- [PKG_PROG_PKG_CONFIG
+ [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+  if test "x$PKG_CONFIG" = x; then
+    AC_MSG_ERROR([pkg-config is missing, please install it])
+  fi
   _guile_versions_to_search="m4_default([$1], [3.0 2.2 2.0])"
   if test -n "$GUILE_EFFECTIVE_VERSION"; then
     _guile_tmp=""
-- 
2.39.2